Day: April 3, 2012

John, more focal length is generally better for birds if it’s sharp enough, the sigma lens is a touch soft at 400-500mm. Here’s a comparison test for the two lenses featuring 100% crops from a test target: http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=113&Camera=453&Sample=0&FLI=7&API=2&LensComp=683&CameraComp=453&SampleComp=0&FLIComp=5&APIComp=0 http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=113&Camera=453&Sample=0&FLI=7&API=2&LensComp=683&CameraComp=453&SampleComp=0&FLIComp=5&APIComp=0 bear in mind this is a severe test and is pixel level view at 100% and … Read more

BIRDLIFE AUSTRALIA PELAGIC TRIP OFF PORTLAND, VIC Sunday 1 April 2012 OBSERVERS: Paul Dodd, Ruth Woodrow, Patrick Scully, John Weigel, Mal Chicksen, Gavin Masters, Grant Penrhyn, Val La May, John McRae, Dave Torr, Iian Denham & Rohan Clarke (report compiler) [A special thanks to Chris Lester who organised the participants but was unable to attend]. … Read more

The feral(?) Ostriches near Barham appear to have had a good season since the last posting about them on Birding Aus (October 2011). On 31 March 2012 early morning, I first saw 2 adults plus two juveniles, then 8 other adults on the east side of Lashbrook Road not far north of the intersection with … Read more

Hi All, I am just after a comparison between the above two lenses for bird and nature photos in general. I want to buy one of the other, but would like some first-hand accounts from any users before deciding to spend my money. Hope some of you can help!

Hi Sydneysiders, please take note that John Dengate CBOC Patron will be featured on 2RRR Community radio which is a Ryde, Sydney, based station answering questions on birds on behalf of CBOC. The bird segment will be featured on Real World Gardening at approx 2.30pm on the 4th of April 88.5 FM band, hope you … Read more